complibs/ppl: fix 0.11-0.11.2 to compile with --disable-shared

PPL 0.11 (through 0.11.2) had a small bug where it still tried to build
and test its Java interface even when shared libraries are disabled.
Since that's exactly what ct-ng does, it explodes.

This is the patch from the PPL authors (see final link below).

More information can be found in these messages/threads:

Anthony's initial report and analysis with Yann:
http://www.cygwin.com/ml/crossgcc/2011-05/msg00046.html

Ron Flory hit the same problem:
http://www.cygwin.com/ml/crossgcc/2011-05/msg00054.html

Anthony's report to the ppl-devel list:
http://www.cs.unipr.it/pipermail/ppl-devel/2011-May/017450.html

Roberto's reply with a link to the fix in the PPL git repo:
http://www.cs.unipr.it/pipermail/ppl-devel/2011-May/017455.html

Signed-Off-By: Anthony Foiani <anthony.foiani@gmail.com>

--- glibc-2.13/sysdeps/unix/sysv/linux/kernel-features.h	2010-07-27 14:34:39.000000000 +0300

+++ glibc-2.13/sysdeps/unix/sysv/linux/kernel-features.h.new	2011-03-10 18:54:37.686795979 +0200

@@ -437,7 +437,8 @@

    the code.  On PPC they were introduced in 2.6.17-rc1,

    on SH in 2.6.19-rc1.  */

 #if __LINUX_KERNEL_VERSION >= 0x020611 \

-    && (!defined __sh__ || __LINUX_KERNEL_VERSION >= 0x020613)

+    && (!defined __sh__ || __LINUX_KERNEL_VERSION >= 0x020613) \

+    && (!defined __alpha__)

 # define __ASSUME_ATFCTS	1

 #endif